<template>
	<h2>当前求和为：{{sum}}</h2>
  <button @click="sum++">点我+1</button>
  <hr>
  <h2>当前点击时鼠标的坐标为：x:{{point.x}},y:{{point.y}}</h2>
</template>

<script>
import {ref,} from 'vue'
import usePoint from '../hooks/usePoint.js'
export default {
  name: 'Demo',

  setup(){
    // 数据
    let sum = ref(0)
    let point = usePoint()

    // 返回一个对象(常用)
    return {
      sum,
      point
    }

  },
}
</script>
